Inertia switch failure

["ksgrimsr" <knut.s.grimsrud@xxxx>]

My daily driver car experienced an inertia switch failure the other 
day. I was surprised at the condition of the failed inertia switch 
when I removed it -- it had clearly experienced overheating and was 
visibly deformed and melted in places. I presume that over time the 
electrical contacts within the unit degraded, resulting in some 
resistance though the unit and associated I^2 * R heating.

Because it's in a location that is easy to overlook, you might 
consider examining yours the next time you're doing periodic 
maintenance to verify that yours is not showing any signs of heating.

Mine had 160,000 miles on it.

Knut